M.T.H. Electric Trains 20-2187-1 Operating instructions

Brand: M.T.H. Electric Trains

Model: 20-2187-1

Category: Toys & accessories

Type: Operating instructions

This manual is also suitable for

ELECTRIC TRAINS

MTH GP38-2 DIESEL ENGINE

OPERATING INSTRUCTIONS

Thank you for purchasing the MTH Electric Trains GP38-2 diesel

locomotive. This ¼” scale reproduction of the famous GP38-2 locomotive

measures over 15” in length and weighs almost 5 pounds. Despite its scale

size, the locomotive is capable of operating on O-31 3-rail track with any

compatible AC transformer, (see page 33 for a complete list of compatible

transformers and wiring instructions) and is completely compatible with

most other 3-rail locomotives, rolling stock and accessories.

The locomotive is equipped with several deluxe features that are simple

and fun to operate. Each feature is described among the following pages

which should be read before the engine is operated. For those of you who

can’t wait to get started, the Quick Start Operating Instructions, found on

page 3, should be read so that you understand the basics of the operating

system.

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Table Of Contents

QUICK START - BASIC OPERATION(All 3-Rail Models)

PROTOSOUNDS® OPERATING INSTRUCTIONS

USING “RESET" TO PROGRAM PROTOSOUNDS®

REVERSE UNIT LOCK-OUT OPERATION

OIL & LUBRICATION INSTRUCTIONS

TRACTION TIRE REPLACEMENT INSTRUCTIONS

LIGHT BULB REMOVAL & REPLACEMENT

TROUBLE SHOOTING PROTOSOUND® PROBLEMS

SERVICE AND WARRANTY INFORMATION

HOW TO GET SERVICE

LIMITED ONE YEAR WARRANTY

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QUICK START - BASIC OPERATION

The MTH GP38-2 contains state-of-the art electronics with several built-in

automatic features for incredibly realistic operation. Despite these advanced

features, the GP38-2 is easy to operate with any compatible standard AC

transformer (see the compatibility chart on page 33).

The GP38-2 model is controlled by a ProtoSound® DCRU® electronic

reverse unit. The reverse unit operates in the same manner that all reverse

units function by using forward, neutral and reverse states that are entered

each time the throttle is turned on and off or by using the transformer

direction switch (if so equipped).

The reverse unit is designed to ignore

dirty track, dead spots on switches or

minor short circuits without disrupting

the engine operation, even at slow,

prototypical speeds. Once the engine is

placed on the track, the transformer

throttle can be advanced. You will see

that only the engine’s lights come on and

two dings from the sound system will

chime followed by the air compressor

pump sounds. The engine does not run.

This is known as the RESET state and is

explained in more detail beginning on

Page 5. The ProtoSound® DCRU®

will not power the motor until the

throttle is turned OFF and then ON

again. At this point, the engine will

now function just like any other

electronic or mechanical E-unit.

Proto-Coupler®

Selection Switch

RESET

Neutral

Reverse

Neutral

Forward

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PROTOSOUNDS® INSTRUCTIONS

The MTH ProtoSound® digital sound and train control system provides

the operator with unprecedented realistic operation on your model railroad.

In addition to actual diesel engine, CD-equivalent 16-bit digital sounds,

you get the following features:

Built-In ProtoSound® DCRU® Reverse Unit * Authentic Diesel Horn Sound*

Authentic Diesel Bell Sound* Squeaking Brake Sound* Freight Yard Sounds*

Operating Remote Controlled ProtoCoupler™* Self-Recharging Battery Back-

Up System With Automatic Battery Shut-Off* Remotely Controlled Reverse Unit

Lock-Out* Remotely Adjustable Diesel Engine Volume* Authentic Cab Chatter

Neutral Sounds* Authentic Diesel Engine Startup & Shutdown Sounds *

Each feature is described among the following pages. Though the system

is easy to use, we encourage you to read the instructions thoroughly.

PROTOSOUND® DCRU® REVERSE UNIT

As mentioned in the Basic Operating section, the engine is controlled by a

DCRU® reverse unit that contains the standard forward-neutral-reverse

states found on most reverse units. However, as described earlier, when

power is first applied to the track, the reverse unit begins in RESET or what

seems like a neutral state. Power must be interrupted again to get the

locomotive to enter the forward state. It is this first RESET state that gives

ProtoSound® its unique, remote controlled functions. The system will enter

RESET whenever power to the track is off for three or more seconds.

NEUTRAL will be referred to as the state between Forward and Reverse.

ProtoSounds® is equipped with a microprocessor, that, depending on the

amount of memory it is allotted, allows the user to utilize several remotely

activated functions. In the simplest terms, ProtoSounds® has its own

“Computer" controlling these functions. In fact, the power of this

microprocessor is the same as that of a 286 desktop computer! In order to

access many of these remotely controlled functions, the user must be in the

RESET state to do so. RESET is entered anytime power to the locomotive

has been off for more than 3 to 5 seconds. When the engine first enters

RESET, the microprocessor initiates a system check to determine if the

system, transformer and engine are operating correctly. This takes

approximately 2.2 seconds during which you will hear the engine’s startup

sounds begin. In order for ProtoSounds® to properly initiate the system

check, do not advance the transformer throttle past 10 volts when you first

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enter RESET, wait for the diesel startup sounds to begin and then slowly

turn the transformer throttle to the off position and then back on again to

enter the forward phase. Interrupting the power too quickly may cause the

system to re-enter RESET (signaled by two dings of the bell). Should this

happen, wait longer before interrupting the power to enter the Forward

phase.

ProtoSounds® comes with several programmable functions, including

remote Diesel Engine Volume Adjustment, Separate Bell Button Operation

(pre-programmed at the factory), Horn In Neutral Operation,

ProtoCoupler™ On/Off Control, Squeaking Brakes and Passenger Station

or Freight Yard Proto-Effects. Each of these features are described in more

detail later. You will notice that when in RESET, your engine will not

respond to the whistle button with a horn blast or continuous bell ringing.

In fact, when in RESET and the whistle button is depressed, only one single

bell chime will be heard each time the whistle button is pressed. If you

don’t want to configure or change your locomotive using any of these

programmable features, simply leave RESET and wait 2.2 seconds before

interrupting the power to put the engine in forward. After you leave

RESET, your engine will operate normally in all the direction states of

forward, neutral and reverse. Remember though, once power is turned off

for more than 3 seconds, the next time power is applied to the track, your

engine will be back in RESET.

HORN OPERATION

Your GP38-2 ProtoSound®-equipped engine is equipped with a digital

recording of a diesel horn. The horn sound can be activated anytime the

engine is in forward or reverse by pressing the whistle button on your

transformer. The horn will continue to blow as long as the whistle button is

depressed. The horn will not function in RESET and must be configured

through a RESET option to allow the whistle to work when the engine is in

neutral. See page 20 for information on horn programming in the Using

RESET To Program ProtoSounds® section of this manual.

BELL OPERATION

Your GP38-2 ProtoSound®-equipped engine is equipped with a digital

recording of an actual diesel engine bell. The bell can be turned on or off

with any separate bell button, like the Lionel® Railsounds® No. 5906 Bell

Button, by simply pushing the button. If you don’t have a separate bell

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button, the bell can be controlled through your transformer’s whistle button

whenever the engine is in NEUTRAL. The bell will never ring

continuously in RESET (Remember NEUTRAL is the state between

Forward and Reverse). Once the bell is turned on, it will continue to ring

when the engine is cycled into forward or reverse until you press the bell

button or re-enter NEUTRAL and turn the bell off with the whistle button.

In fact, because of ProtoSounds® state-of-the-art design, the

microprocessor remembers its last command. Therefore, unless you turn

the bell off before you quit running your train, the next time you run the

engine, the bell will come on. No matter whether you come back an hour

later or a year later, the bell will begin chiming once the engine enters one

of the three directional states.

To turn the bell on using the transformer’s whistle button, turn on power to

the track and cycle the engine into NEUTRAL. Turn the throttle to 8 volts

or less (any higher voltage will arm the ProtoCoupler™) and press the

whistle button. The bell should begin chiming. To turn the bell off, press

the whistle button again. If you want to keep the bell on while running the

engine, simply interrupt the power with the transformer throttle or the

transformer directional switch and enter forward or reverse.

PROTO-COUPLER™ OPERATION

Your GP38-2 ProtoSound®-equipped locomotive is equipped with two

coil-wound ProtoCouplers™ for remote uncoupling action. Because the

ProtoCoupler™ is controlled through ProtoSounds® microprocessor, it

doesn’t require an uncoupling track section or modification to your layout

to function. The three simple steps below are required to operate the

coupler.

1. Put your engine in NEUTRAL and turn the throttle all the way up.

2. Press the transformer

whistle button to “Arm"

the coupler. (You will

hear a “Clank").

3. After arming the

coupler, press the whistle

button again to open the

coupler.

Ca-Clunk

Cha-Chussshhh

Put Engine In Neutral

At Full Power

Press & Release

The Whistle Button

Press & Release

The Whistle Button

Listen For The

Ca-Clunk Sound

See The Coupler Open

And Listen For The

Cha-Chusshh Sound

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When the knuckle fires open you will hear the buzzing of the coil

energizing and the sound of the air lines coming apart. It can best be

described as a CHA-CHUSHHH sound. The coupler doesn’t have to be

fired in NEUTRAL. Once the

coupler is armed it can be fired

in Forward, Neutral or Reverse.

However, you may find that the

coupler doesn’t open when

firing the coupler at high

speeds. Reduce the voltage

setting on your transformer if

this occurs and run your engine

at a slower speed before firing

the coupler. If the coupler

continues to open erratically, try lubricating the knuckle with light oil as

indicated in Fig. 3.

For multiple heading purposes, only one of the two ProtoCouplers™ will

function at any one time. Use the coupler direction switch as shown in

Figure 1 on page 3 to select either the front or rear coupler. Simply slide

the switch toward the direction of the coupler you want to make active.

NEUTRAL-ACTIVATED CAB CHATTER SOUNDS

Your engine is equipped with four dispatacher-to-engineer “Cab Chatter”

radio transmissions that occur every 2 to 30 seconds. Each sequence will

play at random intervals to eliminate repetition. While the sounds are

selected to play randomly by the microprocessor, there is no guarantee that

you won’t hear the same message repeated twice or more times.

SQUEAKING BRAKE SOUNDS

ProtoSound® equipped engines feature the ability to play the sound of

squeaking brakes whenever your engine slows in speed. There are two

settings for activating the squeaking brake sounds. The default setting

allows the brake sounds to play

while the engine is in forward or

reverse and the transformer

throttle is lowered from a high

setting to a low setting (14 volts

to 8 volts or less). The second

Lubricate Coupler Rivet

Squeeek

Throttle Down From

High Voltage To Low

Listen For The

Squeaking Brake Sounds

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setting requires that a bell button be used to “arm” the brake feature and is

explained in more detail in the “Activating Freight Yard Sounds” section

found later in this manual. The sound itself is a stored record on the

ProtoSounds® software chip and will always play the same brake sound for

the same three second length each time the voltage is reduced from high to

low. Some practice may be required to synchronize the playing of the brake

sounds with the movement of the engine. It is not uncommon for the engine

to stop before the brake sound is completed. Operators will find that by

coordinating the movement of the throttle setting from 8 volts to off will

allow the engine to maintain its movement while the brake sounds play.

Note: The brake sounds will not be heard if the transformer throttle is not

set above 14 volts and/or not reduced below 8 volts.

TIPS ON USING THE SQUEAKING BRAKE FEATURE

Note: Consistent activation of the wheel

flange squealing is determined by the condition of your transformer’s whistle

button rectifier disc.

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FREIGHT YARD SOUNDS (FYS)

ProtoSounds® comes equipped with operator controlled Freight Yard

Sounds, hereby referred to as FYS. This easy to use feature plays digitally

reproduced freight yard sounds whenever your engine stops on your layout

and is parked in the Neutral position. No additional wires or modifications

are needed on your layout to enjoy these amazing sound effects. The

sounds themselves are randomly generated and randomly “shuffled” on the

ProtoSounds® software chip. This gives the system the ability to produce

different sounds in a different order each time FYS is enabled. These

different sounds are heard each time you cycle the transformer throttle from

ON to OFF in the same manner that you would cycle the throttle to enter the

various states of Forward, Neutral and Reverse. The entire FYS sequence is

designed to simulate the arrival, loading or unloading and departure of a

freight train in a freight yard. Each sequence is described in more detail in

the following sections.

USING FREIGHT YARD SOUNDS

Your ProtoSound® equipped engine features an operator controlled freight

yard sound set. Once activated, this easy-to-use feature plays the sound of

freight yard activitities whenever the operator parks the engine in the

neutral position.

ARMING THE FREIGHT YARD FEATURE

Before FYS can be heard, ProtoSound® must be told to activate the

feature the next time the engine enters the neutral position. This can be

accomplished in one of two ways.

Option 1: If you are using a separate bell button controller to ring your

bell (like the Lionel® Railsounds® number 5906 bell activation button),

you can activate the feature by pressing and holding down the bell button

for three or more

seconds (it doesn’t

matter if you are in

Forward, Neutral or

Reverse). You will

hear the bell chiming

turn on and if you listen

Ding, Ding

Psshhee

Put Engine In Neutral,

Forward or Reverse

Press & Hold

The Railsounds® Bell Button

For 3 Seconds

Listen For The

Start Of The Bell Sound

Listen For The

Air Release Sound

After 3 Seconds

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carefully, you should hear an air release sound after three seconds have

passed. At this time you can release the bell button. (Note: because the air

release sound may be difficult to hear, we recommend that you count out a

full three seconds before releasing the bell button.) The bell will continue

to chime, so if you want to turn off the bell ringing, simply press and release

the bell button a second time. If you were in Neutral when you triggered

the brake feature, interrupt the transformer throttle to enter either forward or

reverse and allow the engine to begin moving. (Note: the feature will only

be activated in the first direction state you enter after arming the feature

from the Neutral position. You cannot interrupt the power twice to enter

another direction state and still have the brake feature active.) Once your

engine begins moving, you can trigger the sounds to begin playing

whenever you enter Neutral.

Option 2: If you do not have a separate bell button on your layout, you

can still activate the feature with your transformer whistle button. To

activate the feature, turn on the transformer throttle and get your engine into

the Neutral position (not RESET). Once in Neutral, set the transformer

throttle at 8 volts or less and press and hold the whistle button for at least

three seconds. You will hear the bell chiming begin and if you listen

carefully, you should hear an air release sound after three seconds have

passed. At this time you can release the whistle button. (Note: because the

air release sound may be difficult to hear, we recommend that you count out

a full three seconds before releasing the whistle button.) The bell will

continue to chime, so if you

want to turn off the bell

ringing, simply press and

release the whistle button a

second time. Interrupt the

transformer throttle to enter

either forward or reverse

and allow the engine to

begin moving. (Note: the

feature will only be activated in the first direction state you enter after

arming the feature from the Neutral position. You cannot interrupt the

power twice to enter another direction state and still have the brake feature

active.) Once your engine begins moving, you can trigger the sounds to

begin playing whenever you re-enter Neutral.

Ding, Ding

Psshhee

Put Engine In Neutral

At Low Power

Press & Hold

The Whistle Button

For 3 Seconds

Listen For The

Start Of The Bell Sound

Listen For The

Air Release Sound

After 3 Seconds

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ACTIVATING THE FREIGHT YARD SOUNDS

Before FYS can be heard, the feature must be armed as described on the

proceeding pages. Once armed, activating the FYS effects is accomplished

by simply interrupting the transformer throttle and parking the engine in the

Neutral position with track power remaining on. Remember, power to the

track must remain on while the engine sits in Neutral in order for the FYS

effects to operate.

At this point ProtoSounds® has taken over control of your engine and

disabled the bell and whistle buttons from responding to any futher operator

input. In addition, ProtoSounds® has reconfigured the way the reverse unit

functions by disabling the Reverse state during operation of the FYS

effects. This forces the engine to leave your freight yard in the same

direction that it arrived in. The following operator controlled “events”

control FYS’s actions and sound effects.

Event 1 (Forward) While the locomotive is running in forward (or

reverse) FYS is activated by the operator pushing and holding the bell

button down for three or more seconds. The locomotive bell begins

chiming and can be left on or turned off without disabling FYS.

Event 2 (Neural Before Reverse) The operator now interrupts the

transformer throttle to stop the engine and put it into Neutral. If the throttle

setting was at 14 volts or higher , ProtoSounds® will play the sound of

squeaking brake sounds as the engine comes to a halt.

A. Upon stopping of the engine, the operator must immediately turn

the throttle back on to keep the engine in the Neutral position. If the

bell was not turned off after activating

FYS, it now turns off automatically.

Note: Failure to turn the throttle back

on within 3 seconds of leaving the

Forward phase will disable FYS and

shutdown ProtoSounds®. The next time

you turn power back on your engine will

be in the RESET position. See page 5 for more information on

RESET.

Put Engine In Neutral

At Low Power

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B. After entering Neutral, ProtoSounds® will immediately play an

air release sound followed approximately 2 seconds later by a radio

arrival message (cab chatter).

Immediately following the radio arrival

message, the sound of freight car doors

can be heard opening, followed by the

sounds of freight loading and unloading.

At this point various freight yard sounds

can be heard including the

loading/unloading operation, engine

sounds, yardman “slang”, and additional

freight car door sounds.

Event 3: (Reverse) The operator now interrupts the transformer throttle

again to enter the next reverse unit phase; reverse. In an effort to enhance

realism, FYS has disabled the reverse

phase so that it doesn’t power the motors

causing the engine to move backward.

Upon entering reverse, FYS confirms to

the operator that it has entered the reverse

phase by immediately playing a highlight

sound best described as a rumbling sound.

You may have to go through the entire

FYS sequence several times before you can

clearly identify this sound. After the rumbling highlight is played, the

freight yard sounds heard in Event 2 continue to play randomly.

Event 4: (Neutral Before Forward) The operator now interrupts the

transformer throttle again to enter the next reverse unit phase, neutral before

forward. FYS confirms to the operator that it has entered the neutral before

forward phase by emitting two quick air release sounds. This is followed

approximately two seconds later by a radio

departing message and continued freight

yard loading and unloading sounds.

Listen For Air Release Sound

And Cab Chatter Message

Psshhhee

Listen For Engine

Rumbling Sound

Rummmbllle

Interrupt Throttle To

Enter The Next Phase

Listen For 2

Air Release Sounds

Psshee, Psshhee

Interrupt Throttle To

Enter The Next Phase

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Event 5: (Forward) The operator now interrupts the transformer throttle

again to enter the next reverse unit phase; Forward. FYS confirms to the

operator that it has entered the Forward phase by playing a radio messagne

followed by the freight car door closing. Within 2 seconds of the door

closing, the locomotive bell begins chiming.

After approximately 8 chimes of the bell, the

engine begins moving in the forward phase

with the bell continuing to ring another 8

chimes before automatically turning off.

Once the bell turns off, the operator regains

control of the transformer whistle and bell

buttons and can ring the bell or blow the

whistle as usual.

Note: When entering the Forward phase of FYS, it is important to set the transformer

throttle at a high enough setting that will allow the engine to begin moving once FYS

automatically activates the motors. Otherwise the engine will just sit still until you increase

the transformer throttle setting on the transformer. However, don’t set the throttle setting too

high or the engine will go racing away faster than you might expect.

TIPS ON USING FYS FEATURES

Tip #1:

Tip #2:

Tip #3:

Listen For The Sound

Of Box Door Closing

Clunnkkk

Interrupt Throttle To

Enter The Next Phase

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Tip #4:

Tip #5:

Tip #6:

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SELF-RECHARGING BATTERY BACKUP

ProtoSounds® state-of-the-art design includes a self-recharging battery

backup system for improved performance at any speed. The battery ensures

that power to the sound system will remain on during directional changes,

setting RESET options or when travelling over dirty track and switches.

The self-recharging battery backup system is automatically turned on or off

whenever track power is turned on or are off. There are no switches needed

to enjoy the benefits of the automatic battery backup system.

ProtoSounds® contains a warning alarm if the battery backup system fails

to automatically disengage when track power is turned off. Should the

backup system fail, you will hear a repeating whistle blast indicating this

has occurred. Should this happen, unplug the battery from the

ProtoSound® module (to prevent the battery from being run down) and

contact MTH for instructions on returning the tender for repair.

REPLACING THE PROTOSOUND® BATTERY

The ProtoSound® battery (located inside the cab body), is a special NiCad

7-cell, 8.4v battery - NOT the 6-cell, 7.2v battery found in most

convenience stores. The 6-cell NiCad is NOT recommended for use with

ProtoSound® applications. The battery is continually charged from the

track when power is applied and should last for up to five years. In

addition, the NiCad battery is a dry battery and should not leak or cause any

damage to your locomotive during its lifetime.

If you notice that the sounds seem distorted or garbled at low voltages or

become silent when power from the transformer is shut off, the battery may

be going bad. Before replacing the battery, you should put the engine in

NEUTRAL and leave the transformer throttle set at about 12 volts for 15

minutes. This should temporarily recharge the battery. If the garbled or

distorted sounds are reduced, then your battery charge has worn down. You

can give your battery a full charge by leaving the engine ON in the

NEUTRAL position for 18 hours. (Make sure the smoke unit switch is in

the OFF position to prevent harm to the smoke unit wicking).

If you need to replace the battery, replacement ProtoSound® batteries are

available from MTH ProtoSound® Electronics at 7020 Columbia Gateway

Drive, Columbia, MD 21046. A standard 9v alkaline battery can be

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substituted as a temporary fix, but since alkaline batteries can’t take a

charge, it will eventually wear down. Regardless, it should give you a week

to a couple of months use while you wait for your replacement

ProtoSound® battery to arrive.

PROTOSOUND® VOLUME ADJUSTMENT

Your ProtoSound® system has two types of volume adjustment. A

manual turn knob on the bottom of the chassis (See Fig. 4 below) allows

you to control all the sounds in the system and a remote control “RESET"

option (Option # 6), allows you to control the volume level of the engine

sounds remotely from the transformer. Turning the volume adjustment

knob clockwise will increase the volume and counterclockwise will lower

the volume of all sounds; bell, horn, engine sounds, Cab Chatter, etc. For

information on operating the RESET volume adjustment option, see the

section entitled “Programming ProtoSound RESET Options” on the

following pages.

Volume Control Knob

Coupler Direction Switch

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USING “RESET" TO PROGRAM

PROTOSOUNDS®

As mentioned earlier, there are several programmable options in each

ProtoSound®-equipped engine that can be remotely set from any

compatible standard AC transformer equipped with a whistle button. For a

list of compatible transformers, see the chart on page 33. This hands-off

approach gives you unprecedented control of your railroad empire’s motive

power never before seen in model railroading. Each programmable feature

can be accessed whenever your engine is in the RESET state as described

earlier on page 5. By following the instructions below you will find the

programming easy and straight forward.

ENTERING RESET OPTIONS

ProtoSound® is equipped with a few programmable features that are

accessed in the RESET state by moving the transformer throttle up and

down between full voltage and low voltage (6 to 8 volts) without shutting

the transformer off completely. Each time this is done you advance, one

feature at a time, through the available options. An air-release sound is

heard each time the throttle is advanced. In addition, there are special

sounds to tell you what RESET position you are in.

For example, if you want to select Feature 2, you put the engine in

RESET, and move the throttle up and down from full throttle to low two

times. After the second advance, you will hear two “clinks" indicating that

the computer is now in Feature 2. Advance the throttle again and you will

hear three “clinks" for Feature 3. Advance it two more times and you will

hear a “clank" indicating

that you are now in

Feature 5. Advance the

throttle two more times

and you will hear a

“clank" and two “clinks"

indicating Feature 7. ((5

throttle advancements = 1

clank) + (2 throttle

advancements = 2 clinks)). “Clank + “Clink" + “Clink" = Feature 7. You

can advance the throttle as quickly as you like (though you may not hear the

air-release sounds) and the computer will still remember the number of

Clink, Clink

Clank, Clink

In RESET Mode

Move The Throttle

Up & Down From

High Voltage To Low

2 Times

Advance The Throttle

Up & Down From

High Voltage To Low

4 More Times

Listen For The

2 Clink Sounds

Listen For 1 Clank

And 1 Clink Sounds

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times the throttle is advanced by playing back the number of “Clinks" and

“Clanks" to confirm the feature you’ve selected.

SETTING THE ENGINE VOLUME

Of all the sounds that come with each ProtoSound®-equipped locomotive,

the one most often turned down is that of the engine volume because it is

the one sound normally heard whenever the engine is running and is what

usually can become tiresome to the ear over prolonged running sessions.

The volume adjustment is controlled through RESET Feature 6.

To access the feature, advance the transformer throttle to put the engine in

RESET. Move the throttle up and down, as described on page 18, 6 times.

After you hear the “clank" and “clink" indicating that you are in Feature 6,

press the whistle button to select the engine volume level you desire.

Pushing the whistle button once will give you full volume, which is the

factory setting. Pushing the whistle button a second time will give you 50%

volume, pushing it a third time will give you 25% volume and pushing it a

fourth time will give you no sound. The microprocessor will immediately

play the sound level each time the whistle button is pushed so that you can

decide if it is acceptable. You can recycle through the four choices by

simply continuing to

press the whistle button.

Once you have decided

on the appropriate

volume level, turn the

transformer throttle off

and on again or press the

transformer direction switch to lock in your selection. The volume

adjustment will remain set at the level you have chosen until you change it

again. Regardless of the engine volume setting, the horn, bell, compressor

and Cab Chatter sounds will function normally. In fact because only the

engine volume is affected by selections in Feature 6, when you select 0

volume, you can still hear the horn, bell and Cab Chatter sounds when the

engine is running or in neutral.

Clank, Clink

In RESET Mode

Move The Throttle

Up & Down From

High Voltage To Low

6 Times

Listen For 1 Clank

And 1 Clink Sounds

Push The Whistle Button

Until You Reach The

Setting You Desire

Interrupt The Throttle

To “Lock-In”

The Volume Setting

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PROGRAMMING FOR A SEPARATE BELL BUTTON

CONTROLLER

To operate ProtoSounds® with

a separate bell button controller,

like the Lionel® No. 5906 bell

button, you will need to wire up

the controller to your

transformer and track as shown

in Fig. 5. Once the button is

wired, ProtoSounds® comes

preprogrammed to allow you to

operate the bell by simply

pushing the bell button once.

To turn the bell off, push the

button again. If the bell doesn’t’t function when you press the button, you

may need to re-program ProtoSounds® to operate with a separate bell

button controller. To do this enter RESET and go to Feature 20. (See the

section Using RESET To Program ProtoSounds®on page 17.) Once in

Feature 20, press the

whistle button and wait

for the module to sound a

bell ding(s). Continue

pushing the whistle

button until the module

plays back two dings

(signifying that the

module has been

programmed for a bell button). Simply turn the throttle off and then on

again to “Lock-In" the new setting. To reset the computer to its original

factory (default) setting (separate bell button operation), repeat the above

procedure but keep pushing the whistle button until the computer only

responds with one bell ding.

PROGRAMMING FOR SQUEAKING BRAKE

OPERATION

ProtoSounds® can be programmed for squeaking brake operation in three

different manners; (1)Squeaking brakes can be activated by bell button

control, (2)they can be programmed for continuous operation subject to

throttle changes or (3)they can be programmed to be turned off. The default

setting is (2) Squeaking brakes are activated for full-time operation as

Common

RED Wire

BLACK Wire

Clank, Clank, Clank,

Clank, Clank

In RESET Mode

Move The Throttle

Up & Down From

High Voltage To Low

20 Times

Listen For 5 Clank

And 0 Clink Sounds

Push The Whistle Button

Until You Hear 2 Dings

Interrupt The Throttle

To “Lock-In”

The Bell Button Setting

MTH GP38-2 Diesel Operating Manual

PREMIER LINE

described on page 8. To change the default setting, enter RESET and go to

Feature 45. (See the section Using RESET To Program ProtoSounds® on

page 17). Once in Feature 45, press the whistle button and wait for the

module to sound a bell ding(s). Continue pressing the whistle button until

the module plays back one ding for option 1 - Squeaking brakes are

activated by the bell button. Press the whistle button again until the module

plays back two dings for

option 2 - squeaking

brakes are activated for

full-time operation, or

press the whistle button

again until the module

plays back three dings for

option 3 -Squeaking brakes

off. Once you have

decided on the desired setting, simply turn the throttle off and then on again

to “Lock-In” the new setting. To reset the computer to its original factory

default setting (option 2 - squeaking brakes are activated for full-time

operation), repeat the above procedure but keep pushing the whistle button

until the module only responds with two bell dings.

PROGRAMMING FOR HORN IN NEUTRAL

OPERATION

If you are operating your engine with a separate bell button and want to

blow your horn when your engine is in neutral, you will need to program

ProtoSounds® to do so as the factory setting only allows the horn to blow in

forward or reverse. To do

this, enter RESET and go to

Feature 25. (See the section

Using RESET To Program

ProtoSounds® on page 17.)

Once in Feature 25, press the

transformer whistle button

and wait for ProtoSounds® to

sound a bell ding(s).

Continue pressing the whistle

Clank, Clank, Clank,

Clank, Clank, Etc.

In RESET Mode

Move The Throttle

Up & Down From

High Voltage To Low

25 Times

Listen For 5 Clank

And 0 Clink Sounds

Push The Whistle Button

Until You Hear

2 Bell Dings

Interrupt The Throttle

To “Lock-In”

The Horn Setting

Clank, Clank, Clank,

Clank, Clank, Etc.

In RESET Mode

Move The Throttle

Up & Down From

High Voltage To Low

45 Times

Listen For 9 Clank

And 0 Clink Sounds

Push The Whistle Button

Until You Hear The

Appropriate # Of Dings

Interrupt The Throttle

To “Lock-In”

The Brake Setting

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M.T.H. Electric Trains 20-2187-1 Operating instructions

Brand: M.T.H. Electric Trains

Model: 20-2187-1

Category: Toys & accessories

Type: Operating instructions

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